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  2. Evolution of metal ions in biological systems - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_Metal_Ions_in...

    The reduction of Fe(III) is seen to oxidize sulfur (from H 2 S to SO 4 −2), which is a central process in marine sediments. Many of the first metalloproteins consisted of iron-sulphur complexes formed during photosynthesis. [13] Iron is the main redox metal in biological systems.

  3. Biohydrometallurgy - Wikipedia

    en.wikipedia.org/wiki/Biohydrometallurgy

    Metallurgy: A process involving the separating and refining of metals from other substances; [4] Bioleaching: Using biological agents (bacteria) to extract metals or soils; [ 5 ] general term used to encompass all forms biotechnological forms of extraction ( hydrometallurgy , biohydrometallurgy, biomining , etc)

  4. Molecular models of DNA - Wikipedia

    en.wikipedia.org/wiki/Molecular_models_of_DNA

    The chemical structure of DNA is insufficient to understand the complexity of the 3D structures of DNA. In contrast, animated molecular models allow one to visually explore the three-dimensional (3D) structure of DNA. The DNA model shown (far right) is a space-filling, or CPK, model of the DNA double helix. Animated molecular models, such as ...

  5. Photophosphorylation - Wikipedia

    en.wikipedia.org/wiki/Photophosphorylation

    Both the structure of ATP synthase and its underlying gene are remarkably similar in all known forms of life. ATP synthase is powered by a transmembrane electrochemical potential gradient, usually in the form of a proton gradient. In all living organisms, a series of redox reactions is used to produce a transmembrane electrochemical potential ...

  6. The 9 Best Grocery Items for Weight Loss, According to ... - AOL

    www.aol.com/9-best-grocery-items-weight...

    Snacks are especially important when trying to lose weight, as they help prevent you from becoming too hungry in between meals. Choosing a snack like popcorn allows you to eat a large serving that ...

  7. Government shutdown odds are rising. Economic experts aren’t ...

    www.aol.com/finance/government-shutdown-odds...

    Other stoppages have been much shorter, with economic analyses after the fact often showing that the lost money is then returned to the US economy in nearly equal measure after the government reopens.

  8. Meta donates $1 million to Trump’s inaugural fund in latest ...

    www.aol.com/meta-donates-1-million-trump...

    Meta has donated $1 million to President-elect Donald Trump’s inaugural fund, the company confirmed to CNN. The news comes two weeks after Meta CEO Mark Zuckerberg met with Trump privately at ...

  9. DNA synthesis - Wikipedia

    en.wikipedia.org/wiki/DNA_synthesis

    Structure of double-stranded DNA, the product of DNA synthesis, showing individual nucleotide units and bonds. DNA synthesis is the natural or artificial creation of deoxyribonucleic acid (DNA) molecules. DNA is a macromolecule made up of nucleotide units, which are linked by covalent bonds and hydrogen bonds, in a repeating structure.